powerpc: Enable device tree support for T2080RDB
Add device tree for T2080RDB board and enable CONFIG_OF_CONTROL
so that device tree can be compiled.
Update board README for device tree usage.
Signed-off-by: Hou Zhiqiang <Zhiqiang.Hou@nxp.com>
Reviewed-by: Prabhakar Kushwaha <prabhakar.kushwaha@nxp.com>
diff --git a/board/freescale/t208xrdb/README b/board/freescale/t208xrdb/README
index 42b2b92..9e4b28f 100644
--- a/board/freescale/t208xrdb/README
+++ b/board/freescale/t208xrdb/README
@@ -262,3 +262,22 @@
For more details, please refer to T2080PCIe-RDB User Guide and access
website www.freescale.com and Freescale QorIQ SDK Infocenter document.
+
+Device tree support and how to enable it for different configs
+--------------------------------------------------------------
+Device tree support is available for t2080rdb for below mentioned boot,
+1. NOR Boot
+2. NAND Boot
+3. SD Boot
+4. SPIFLASH Boot
+
+To enable device tree support for other boot, below configs need to be
+enabled in relative defconfig file,
+1. CONFIG_DEFAULT_DEVICE_TREE="t2080rdb" (Change default device tree name if required)
+2. CONFIG_OF_CONTROL
+3. CONFIG_MPC85XX_HAVE_RESET_VECTOR if reset vector is located at
+ CONFIG_RESET_VECTOR_ADDRESS - 0xffc
+
+If device tree support is enabled in defconfig,
+1. use 'u-boot-with-dtb.bin' for NOR boot.
+2. use 'u-boot-with-spl-pbl.bin' for other boot.